Sand-pump or well-cleaning device.



G. H. ANDERSON.

SAND PUMP OR WELL CLEANING DEVICE.

APPLIUATION FILED SEPT. 26,1911.

1,117,752, Patented Nov. 17, 1914.

62 Gear e 641M011.

THE NORRIS FEYERS CU,PHOTD-LITHO1. WASHINGTON. r) c CJI GEORGE H. ANDERSON, OF 'WAVERLY, WEST VIRGINIA.

SAND-PUMP OR HELL-CLEANING DEVICE.

Specification of Letters Patent.

Patented Nov. 17, 1914.

Application filed September .26, 1911. Serial No. 651,313.

T all whom, it may concern:

Be it known that I, Gnoncn H. ANDERSON, a citizen of the United States, resident of VV-averly, in the county of food and State of "West Virginia, have made a certain new and useful Invention in Sand-Pumps or IVelLCleaning Devices; and I declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it appertains to make and use the invention, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 is a central longitudinal section of the invention partly broken away. Fig. 2 is a detail side view of the weight rod. Fig. 3 is a detail side view of the rope socket. Fig. i is a detail cross section of the valve plate and valve, showing the valve as in raised position. Fig. 5 is a plan view of the valve and its plate.

The invention has relation to sand pumps or well cleaning devices, and it consists in the novel construction and combinations of parts, as hereinafter set forth.

In the accompanying drawings, illustrating the invention, the numeral 1 designates a. plunger, the upper part of which consists of a steel or preferably wrought iron tubular portion 2, and the lower or striking part 3 of which comprises a steel ring I having an inner upward facing shoulder 5 and an acute marginal edge 6, beveled upward and inward. This lower portion is provided with a coarse thread at 7, and the up er or iron portion preferably with a fine tircad 8. Connecting the upper tubular portion and the striking ring 3 is an interior joint cylinder 9 having an exterior circular flange 10 which is located between the lower end of the tube and the upper end of the ring. These ends are plane and at right angles to the axis of the tube, and the upper and lower surfaces of the flange are also plane and designed to engage said ends solidly when the parts are secured in position. For this purpose the joint cylinder is provided, above the flange, with an exterior thread to engage the thread of the tubular portion 2, and the lower portion of this joint cylinder is provided with a coarse thread to engage the thread of the ring 3. This lower ortion or part below the flange is shorter than the height of the striking ring above its interior shoulder, in order to provide a seat for the valve plate 11 on said shoulder, such valve plate being secured in place when the ring is screwed up solidly on the lower or nipple portion of the joint cylinder.

Diametrically opposite holes 12 are provided in the wall of the joint cylinder, which are designed to register with diametrically opposite holes 13 in the tube, these holes being utilized to provide seats for rivets 14 which secure the parts together so as to prevent them from turning upon each other. In this manner a very strong striking tube, designed to withstand the shocks of its usage, is provided, as the flange of the oint cylinder forms a buffer or anvil between the tubular portion 2 and the striking ring, and, as this flange is integral with the wall of the joint cylinder, the ends of the tube and ring are held securely in alinement, and the arts are prevented from spreading, and tie liability of fracture is reduced to a minimum for the ordinary thickness of wall. And, because of the solid abutment of the end portions of the tube and ring against the flange and the separation of the lower coarse thread from the upper thread, the ring portion 3 is materially shortened and can be quickly removed in case a new valve is required because of breakage or injury, which happens quite often. IVhen the ring and tube are spliced together by rabbeting and threading their respective walls, these threads are unsupported and are apt to become broken or injured by the rough shocks to which the instrument is subjected. In the present inven tion engagement of the threads of the ring and tube is avoided, so that they have no action upon each other.

The valve plate 11 is of annular form and carries a valve 15, preferably of leather, hinged to said plate at 16, and having a weight 17 The up er end of the plunger has a screw threaded portion 18, with which a weight rod 19 has engagement, a rope socket 520 being engaged with the upper end of the weight rod.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is In a. sand-pump, a tubular body-member having an internally threaded lower portion, a removable tubular shoe-member having an internal thread at its upper portion and an inward extending annular shoulder at the lower end of said internal thread, an annular plate upon said shoulder and of equal width thereto, a valve carried by an offset of said plate, and a tubular jointmember having an external fine-threaded upper portion engaging the thread of the body member, an external annular anvil flange located between the body-member and the shoe-member and. in contact with the respective lower and upper ends of the members, and an external coarse-threaded lower portion engaging the upper threaded portion of the shoe member, said lower portion at its lower end having contact with the valve plate, wherebv a solid compact hammerend is provided and the fine-threaded connection between body and joint members is prevented from being stripped when the pump is in use.

In testimony whereof I aflix my signature, in presence of two witnesses.

GEORGE H. ANDERSON. Witnesses:

WM. DAILEY, F. ANDERSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of lacents,

Washington, D. G. 

